/* The Computer Language Benchmarks Game
   https://salsa.debian.org/benchmarksgame-team/benchmarksgame/
   contributed by Mark C. Lewis
*/

import java.text.NumberFormat;

final class Nbody2 {
	private final Body2[] bodies;

	public Nbody2() {
		bodies = new Body2[]{Body2.sun(), Body2.jupiter(), Body2.saturn(), Body2.uranus(), Body2.neptune()};

		double px = 0.0;
		double py = 0.0;
		double pz = 0.0;
		for (Body2 body : bodies) {
			px += body.vx * body.mass;
			py += body.vy * body.mass;
			pz += body.vz * body.mass;
		}
		bodies[0].offsetMomentum(px, py, pz);
	}

	public void advance(double dt) {
		double dx, dy, dz, distance, mag;

		for (int i = 0; i < bodies.length; ++i) {
			for (int j = i + 1; j < bodies.length; ++j) {
				dx = bodies[i].x - bodies[j].x;
				dy = bodies[i].y - bodies[j].y;
				dz = bodies[i].z - bodies[j].z;

				distance = Math.sqrt(dx * dx + dy * dy + dz * dz);
				mag = dt / (distance * distance * distance);

				bodies[i].vx -= dx * bodies[j].mass * mag;
				bodies[i].vy -= dy * bodies[j].mass * mag;
				bodies[i].vz -= dz * bodies[j].mass * mag;

				bodies[j].vx += dx * bodies[i].mass * mag;
				bodies[j].vy += dy * bodies[i].mass * mag;
				bodies[j].vz += dz * bodies[i].mass * mag;
			}
		}

		for (Body2 body : bodies) {
			body.x += dt * body.vx;
			body.y += dt * body.vy;
			body.z += dt * body.vz;
		}
	}

	public double energy() {
		double dx, dy, dz, distance;
		double e = 0.0;

		for (int i = 0; i < bodies.length; ++i) {
			e += 0.5
					* bodies[i].mass
					* (bodies[i].vx * bodies[i].vx
					+ bodies[i].vy * bodies[i].vy
					+ bodies[i].vz * bodies[i].vz);

			for (int j = i + 1; j < bodies.length; ++j) {
				dx = bodies[i].x - bodies[j].x;
				dy = bodies[i].y - bodies[j].y;
				dz = bodies[i].z - bodies[j].z;

				distance = Math.sqrt(dx * dx + dy * dy + dz * dz);
				e -= (bodies[i].mass * bodies[j].mass) / distance;
			}
		}
		return e;
	}

	public static void main(String[] args) {
		NumberFormat nf = NumberFormat.getInstance();
		nf.setMaximumFractionDigits(9);
		nf.setMinimumFractionDigits(9);
		nf.setGroupingUsed(false);

		int n = Integer.parseInt(args[0]);

		Nbody2 bodies = new Nbody2();

		System.out.println(nf.format(bodies.energy()));
		for (int i = 0; i < n; ++i) {
			bodies.advance(0.01);
		}
		System.out.println(nf.format(bodies.energy()));
	}
}

final class Body2 {
	static final double PI = 3.141592653589793;
	static final double SOLAR_MASS = 4 * PI * PI;
	static final double DAYS_PER_YEAR = 365.24;
	public double x, y, z, vx, vy, vz, mass;

	public Body2() {
	}

	static Body2 jupiter() {
		Body2 p = new Body2();
		p.x = 4.84143144246472090e+00;
		p.y = -1.16032004402742839e+00;
		p.z = -1.03622044471123109e-01;
		p.vx = 1.66007664274403694e-03 * DAYS_PER_YEAR;
		p.vy = 7.69901118419740425e-03 * DAYS_PER_YEAR;
		p.vz = -6.90460016972063023e-05 * DAYS_PER_YEAR;
		p.mass = 9.54791938424326609e-04 * SOLAR_MASS;
		return p;
	}

	static Body2 saturn() {
		Body2 p = new Body2();
		p.x = 8.34336671824457987e+00;
		p.y = 4.12479856412430479e+00;
		p.z = -4.03523417114321381e-01;
		p.vx = -2.76742510726862411e-03 * DAYS_PER_YEAR;
		p.vy = 4.99852801234917238e-03 * DAYS_PER_YEAR;
		p.vz = 2.30417297573763929e-05 * DAYS_PER_YEAR;
		p.mass = 2.85885980666130812e-04 * SOLAR_MASS;
		return p;
	}

	static Body2 uranus() {
		Body2 p = new Body2();
		p.x = 1.28943695621391310e+01;
		p.y = -1.51111514016986312e+01;
		p.z = -2.23307578892655734e-01;
		p.vx = 2.96460137564761618e-03 * DAYS_PER_YEAR;
		p.vy = 2.37847173959480950e-03 * DAYS_PER_YEAR;
		p.vz = -2.96589568540237556e-05 * DAYS_PER_YEAR;
		p.mass = 4.36624404335156298e-05 * SOLAR_MASS;
		return p;
	}

	static Body2 neptune() {
		Body2 p = new Body2();
		p.x = 1.53796971148509165e+01;
		p.y = -2.59193146099879641e+01;
		p.z = 1.79258772950371181e-01;
		p.vx = 2.68067772490389322e-03 * DAYS_PER_YEAR;
		p.vy = 1.62824170038242295e-03 * DAYS_PER_YEAR;
		p.vz = -9.51592254519715870e-05 * DAYS_PER_YEAR;
		p.mass = 5.15138902046611451e-05 * SOLAR_MASS;
		return p;
	}

	static Body2 sun() {
		Body2 p = new Body2();
		p.mass = SOLAR_MASS;
		return p;
	}

	void offsetMomentum(double px, double py, double pz) {
		vx = -px / SOLAR_MASS;
		vy = -py / SOLAR_MASS;
		vz = -pz / SOLAR_MASS;
	}
}
